baber/WOPTO huggingface dataset:
Patent GB-1240704-A (GB)
Title: Improvements in or relating to the control of delivery apparatus
Inventor: PARRY JOHN GERALD
IPC: G01F11/00
Filed: 1968-07-11
Abstract: 1,240,704. Dispensing measured quantities of material. ALFA-LAVAL CO. Ltd. 10 July, 1969 [11 July, 1968], No. 33144/68. Heading B8N. [Also in Divisions F1 and F2] Means for controlling an actuating means, such as described in Specification 1,007,201 for a dispensing apparatus, such as described in Specification 903,997, comprises a vacuum pulsator connected by a control valve to a vacuum relay, the valve being constructed to be set to a predetermined position manually, then be indexed stepwise to a closed position by a pawl actuated by vacuum pulses from the pulsator. The dispensing apparatus may have four vanes defining four measuring chambers rotated on a spindle through a one-way drive by a piston and cylinder as disclosed in the above Specifications. The dispensing apparatus may be for delivering feedstuffs in a milking parlour and in a first embodiment, Fig. 1, one valve 10 is provided to control the actuation of each piston and cylinder through a vacuum relay (not shown). Each valve 10 has a rotatable ratchet wheel a fixed base member and a major arcuate groove normally connecting a branch of a distributer valve 7, connected to a vacuum pulsator 2, with one of the vacuum relays. The pulsator 2 is connected through a switch to a constant vacuum line 3 and serves to connect the distributer valve 7 and a diaphragm motor 6 alternatingly to vacuum and atmosphere. The motor 6 oscillates a disc 8 having pawls 9, which index the valves 10 round from a manually set position corresponding to a predetermined amount of feedstuff to be delivered. Rotation of the valves stops when each pawl engages a non-toothed portion of the valves circumference. A change-over switch 12 may be provided to connect any selected one of two or more groups of delivery apparatus with the valves 10. In the second embodiment, the apparatus is adapted to dispense the bulk of the feedstuff in a relatively short time, and the remainder in small doses at intervals. In order to achieve this a high-speed pulsator and a low-speed pulsator are connected by tubes 19, 20 respectively to speed changer 13 having a spring- biased diaphragm connected to a pivotally mounted sector acting as a valve to connect either tube 19 or 20 with an outlet part 16. The valve 10 in this embodiment has a major arcuate groove connecting the outlet 16 with the vacuum relay and a minor arcuate groove of small radius linking a connection 18 of the speed changer with a constant vacuum supply 17. The valve 10 is rotated stepwise by the motor 6A, also connected to the outlet 16 of the speed changer via the pawl 9, from a manually set position with high-speed pulses. These pulses are communicated to the vacuum relay until the minor groove joins the constant vacuum supply 17 to the connection 18 which reverses the valve sector and allows low-speed pulses to be communicated to the vacuum relay.
Patent GB-986999-A (GB)
Title: A process for the production of sodium carboxymethylcellulose from jute and oil-in-water emulsions prepared therefrom
Inventor: KHUNDKAR MUKARRAM HUSSAIN
IPC: A23D7/00
Filed: 1963-08-21
Abstract: Sodium carboxymethyl cellulose is made by steeping pure jute cellulose in a 30-70% caustic soda solution for 1-2 hours at 20-25 DEG  C., with a cellulose/alkali solution ratio of from 1 : 4 to 1 : 5 (weight/volume) pressing out excess of alkali from the mass, and mixing the resulting sodium cellulose with chloroacetic acid for 4 to 6 hours at 35-45 DEG  C., whereby sodium carboxymethyl cellulose having a degree of substitution of 0.6 to 1.1 is obtained. Preferably, the excess of alkali is pressed out to a weight of 4-5 times the original weight of cellulose.  Solid chloracetic acid, or a 70-80% solution thereof, may be used, but the sodium cellulose must not be allowed to dry during the reaction with chloracetic acid.  The product may be freed from glycollic acid impurities by washing with acetone or hot 80% by weight ethyl alcohol.  The degree of substitution of the product may be varied by adjustment of the concentration of the caustic soda solution. For the method of preparing the jute cellulose (see Division D2); for the use of the products as emulsion stabilizers (see Division B1).ALSO:Oil-in-water emulsions contain as emulsifying agent a sodium carboxymethyl cellulose having a degree of substitution of 0,6 to 1,1.  In examples: (i) an emulsion of olive oil and water in a ratio of 1 : 2 by volume is stabilized by the addition of said agent in a concentration of 2,5% (w/v) of the aqueous phase. The emulsion is stable for 40 days and shows no creaming; (ii) castor oil and water emulsions in ratios of 1 : 1 and 1,5 : 1 by volume are stabilized by the addition of said agent in a concentration of 2% of the aqueous phase.  The emulsions are stable for 30 days and show no creaming. For the preparation of the sodium carboxymethyl cellulose from jute cellulose, see Division C3.ALSO:Pure jute cellulose is prepared either by chlorinating powdered jute, removing the resulting chloro derivatives of lignin by boiling with sodium sulphite, and repeating this treatment until the jute powders becomes white, or alternatively by boiling powdered jute in about 1% caustic soda solution, placing the jute after washing with water under a slow stream of chlorine till the jute becomes golden yellow, boiling the chlorinated jute with about 2% sodium sulphite solution (containing 0.2% NaoH) and washing the resulting product with hot water whereby pure, white jute cellulose is obtained.  Powdered jute for either process may be made by cutting jute fibres or jute cuttings into small pieces and milling.  For the use of the product in the preparation of sodium carboxymethyl cellulose see Division C3.
Patent GB-825316-A (GB)
Title: Improved control system for a motor vehicle power transmission
IPC: F15B15/18
Filed: 1957-10-25
Abstract: 825,316. Change-speed control. GENERAL MOTORS CORPORATION. Oct. 25, 1957 [Nov. 13, 1958], No. 33373/57. Class 80 (2). The rate of increase of fluid pressure supplied to an apply chamber 68 of a drive-establishing friction brake 70 for a planet-train reaction element in a motor-vehicle variable-speed transmission is controlled by a valve 50 connecting sections 24, 66 of a line through which the brake is fed from a manual range-selecting valve 14, the valve 50 being subjected through a restrictor 64 to brake-apply pressure 66, which moves the valve rightwards on initial pressure increase to close communication between unrestricted valve ports 54, 55, whereby continued pressure supply to the brake is at a reduced rate through a restrictor 63 between the line sections 24, 66 and previously by-passed by the valve 50. The rightward valve movement is opposed by a spring 65 and a pressure 44 variably metered by a regulator valve 26 loaded at 37 by the usual engine accelerator pedal to provide a throttle-variable pressure 44, so that the initial brake-apply pressure necessary to move the valve 50 rightwards to close the restrictor by-pass is increased with accelerator depression. Fig. 2, not shown, provides snap return of the valve 50 to the non-restricting position shown, on selecting neutral, by use of a spring 65 of increased strength. When the brake line 24 is pressurized by moving the manual rangeselector 14 from N to D or other setting, this increased spring strength is counteracted by supplying pressure from the line 24 to act rightwards on a reduced land at the left end of the valve 50 so that the spring loading is in effect reduced to that of Fig. 1. When the line 24 is exhausted in the N setting of the range-selector 14, the opposition fluid pressure is also exhausted and the full spring strength is available to move the valve 50 rapidly to the unrestricted position, permitting rapid exhaustion of the brake. An engine-driven pump 10 supplies the pressure. Specification 790,617 is referred to.
Patent GB-1316763-A (GB)
Title: Arrangement for ensuring that the voltage supplied to a load remains substantially constant
IPC: H02J9/06
Filed: 1970-07-09
Abstract: 1316763 Standby supply systems LICENTIA PATENT-VERWALTUNGS-GmbH 9 July 1970 [11 July 1969] 33392/70 Heading H2H An arrangement for ensuring that the voltage supplied to a load 3 remains substantially constant comprises generators 1, 2 adapted to operate in parallel, each generator being connected to a respective energy store El, E2, a contactor S1, S2 and a common output 9, a standby power supply N and a synchronizing device 5 for maintaining the generators in synchronism with the standby power supply. The device 5 synchronizes the generators and the supply N via a control unit 4. The generators comprise single or three phase static inverters including thyristors or transistors and supply signals on lines a 1 , a 2  to a central monitoring unit 6. If, for example, the inverter 1 should fail or develop an over or under voltage at its input or output, a signal on line a 1  causes the unit 6 to supply a signal on line c which closes an electronic switch 8 thereby connecting the standby power supply N to the load. The unit 6 also supplies signals on lines d 1  and e 2  to open the contactor S 1  and adjust the output of the inverter 2 respectively. The unit 6 then supplies a further signal on the line c to open the switch 8. If the inverter 2 also fails the unit 6 sends a signal on line d 2  to open the contactor S 2  and a signal on the line c to close the switch 8 so that the load is supplied exclusively by the supply N. In the arrangement shown a pair of switches 8 and 8<SP>1</SP> are provided so that if the inverter 1 or 2 fails the respective switch 8<SP>1</SP> or 8 is closed to connect the load to the supply N. If a monitor 5<SP>1</SP> has caused a contactor S N  to open and a fault has developed in the inverter 1 or 2, the monitor unit 6<SP>1</SP> or 6 omits a signal on lines d or d 2  to close an emergency contactor S<SP>1</SP> 8  or S 8  thereby connecting the supply N to the load.
Patent GB-335104-A (GB)
Title: Mechanical aircraft parachute
IPC: B64D17/00
Filed: 1929-11-04
Abstract: 335,104. Scaparro, E. Nov. 4, 1929. Parachutes for use on aircraft comprise a rigid column A fixed to the fuselage of the machine, a slidable dome M serving as a cover for the folded parachute fabric, and a number of rigid trellis frames I for spreading the fabric. The frames I are spaced radially round the column A and the inner ends are secured to a fixed disc B and to a movable disc D which is caused to approach the disc B and thus extend the parachute when a spring E normally under tension and connected by ropes S to a hub Q is released. This action also causes the raising of the dome M which is fixed to rods 0 secured to the disc D and sliding through disc B. Hub Q is normally held by a socket H which is turned by levers R until projections in the socket register with slots G in the hub. Cables secured to the disc D and to the column A limit the expansion of the trellis frames.
Patent GB-1059224-A (GB)
Title: Improvements in and relating to electric terminal assemblies
Inventor: CASHMORE PETER JOHN
IPC: H01R9/16
Filed: 1964-08-17
Abstract: 1,059,224. Two-part couplings. GENERAL ELECTRIC CO. Ltd. Oct. 14, 1965 [Aug. 17, 1964], No. 33514/64. Heading H2E. A connector comprises at least one plug contact 18 having a ring part 19 which is pressed over a spigot 14 into an annular recess 12 in an insulating block 1 where it is retained by the resilience of the walls of the recess, the contact parts 18 fitting closely into and extending from a channel 13. As shown, the frusto-conical spigot .14 has resilient ribs 15 projecting from it which the ring part 19 compresses until it snaps beyond them. Alternatively, Fig. 7 (not shown), resilient walls (27) may be upstanding from the face of the block and the ring part (19) may snap under integrally moulded webs (28) in the walls. The insulating block 1 is secured to a raised platform 7, provided at one end of the base 8 of a casing 9 of, say, a choke assembly 10, by longitudinal studs 2 which - engage in keyhole slots 5, or by a circular stud (22), Fig. 7 (not shown), with a cam-shaped head which engages in a slot (26). Leads 21 are soldered to the contacts.
Patent GB-970171-A (GB)
Title: Magnetic metal sheet memory array and method of making it
IPC: H05K1/05
Filed: 1961-09-19
Abstract: 970,171. Magnetic information storage devices. RADIO CORPORATION OF AMERICA. Sept. 19, 1961 [Oct. 10, 1960], No. 33552/61. Heading H3B. A magnetic sheet memory array is constructed by covering one side of a metal sheet in a pattern defining a plurality of apertures, covering the other side in a similar pattern registered with the first but defining in addition narrow gaps between the apertures, removing portions of the metal sheet in accordance with the patterns to provide a sheet having a plurality of apertures around which a magnetic flux can be stored and having narrow gaps between the apertures to obstruct undesired spreading of the flux, applying an insulating coating to the sheet, including the walls of the apertures, and printing windings on the insulating coating which extend through the apertures. In Fig. 2, sheet 10 (e.g. of 4-78 molybdenum-permalloy, 49: 49: 2 Fe: Co: V, or a nickel-iron alloy containing 50% or 65 to 90% nickel) is coated on both sides with a photo-resist which is exposed in the desired pattern and developed to leave circular areas 14, 18 and annular grooves 20. The structure is then etched with a fine spray of warm ferric chloride solution to form, as shown in Fig. 3, apertures 24 and gaps 26 defining metal annuli 28 secured to the remainder of the metal sheet by photoresist layer 12. The structure is then coated (Fig. 4) with an insulating material 30, preferably also shock absorbing, such as silicone rubber. Paint or epoxy resin may alternatively be used. Windings 36 are then printed over coating 30. In a modification, Fig. 6, auxiliary apertures 50, connecting with gap 26, are provided so that the windings link only annulus 28. It is stated that each magnetic storage element may be of the transfluxor type, having a plurality of apertures and flux paths. Gaps 26 need' not completely surround each aperture.
Patent GB-988786-A (GB)
Title: Improvements in mixers, for instance in concrete mixers
IPC: B28C5/08
Filed: 1962-09-03
Abstract: 988,786. Concrete mixers. P. AUGUST. Sept. 3, 1962, No. 33677/62. Heading B1C. [Also in Division G1] A concrete mixer of the type having a non- rotatable horizontal drum which has rotary mixing devices therein and is movable from a lower, charging position to an upper, discharging position is combined with a similar mixer for pre-mixing the dry solid materials. As shown in Fig. 1 the main mixer A has a drum 1 raised and lowered by a reversible motor (not depicted), winch 12 and cables 13 along inclined guides 9, 10 which tilt the drum in the uppermost position to discharge it through the shoot 7 into the hopper 11. The drum 1 has rotatable mixing devices continuously driven by an independent motor 5, and means (not depicted) for supplying water in metered quantities. The pre-mixer B has a similar drum 24 carried by freely rotatable rollers 26 on guides 30 and hoisted and lowered by a reversible pole-changing motor 39 which rotates the shaft 41 and rope drums 42, 43 fixed thereon, the rope 44 thereby rotating the pulleys 27 and thus the mixing devices in the drum 24 during the upward and downward motion of the latter. In operation the main mixing drum 1 closes a switch in its downward movement to start motor 39 so that the drum 24 reaches the top and discharges as the drum 1 reaches the bottom ; water having been first supplied to the drum 1, which is raised and lowered at greater speed than the drum 24 so that both cycles take the same time. The mixing device of the drum 1 (see Fig. 2) comprises a screw 15 and detachable paddles 14, 14a; the paddles 14 are inclined to convey in the opposite direction to the screw, while the three paddles 14a convey in the same direction as the screw to relieve pressure on the end walls 17. The mixing device of the pre-mixing drum 24, Fig. 4, consists of semicircular bands 45 having leading ends terminating in replaceable scrapers 48; the bands 45 are eccentric to the axis of the drum (see Fig: 6, not shown) and may be inclined to the axis of rotation (see Fig. 5, not shown). The walls of the drum 1 are made in replaceable sections. The lower portions 30a of the guide rails 30 are mounted by links 32 for oscillatory movement and are connected to a weighing device 33, which controls the motor 39 so that the drum 24 cannot be raised until it contains the desired weight.
Patent GB-776376-A (GB)
Title: Improvements relating to cathode ray-tubes for colour reproduction
IPC: H04N9/20
Filed: 1954-11-22
Abstract: 776,376. Colour television tubes. GENERAL ELECTRIC CO. Nov. 22, 1954 [Dec. 14, 1953], No. 33774/54. Class 39(1). [Also in Group 'XL(b)] A colour receiving tube comprises two electron guns the beam from one of which always impinges on a phosphor of one colour and the second beam can be switched from phosphors of a second to a third colour by a colour switching grid adjacent to the screen. In the form illustrated green video signals are applied to gun 8 and red and blue signals to gun 10 and grid wires 32 are connected in two sets for colour switching. A plurality of cylindrical electron lenses are set up between the grid 32 and a metal coating, permeable to electrons, on phosphor strips 30. It is shown that beam 8 always strikes green phosphor strips but that beam 10 can be switched from red to blue by reversing the colour switching voltage. To avoid line structure in red and blue portions of the image and so to reduce flicker the beam from gun 10 has a greater crosssectional dimension vertically than horizontally. The beams are generated by separate cathodes associated with separate control grids, to which the video is applied, screen grids first anodes Fig. 1A (not shown) a common convergence electrode 22 and wall coating 23. The two colour switching waves 180 degrees out of phase are produced by a " colour keyer " 16. These waves are also applied to amplifiers 12, 14 to render them conductive at the appropriate moments for application of the blue or red signals to gun 10.
Patent GB-1153784-A (GB)
Title: Indicator Composition and Test Method for Viable Micro-Organisms
IPC: C12Q1/04
Filed: 1966-07-27
Abstract: 1,153,784. Micro-biological testing. STANDARD OIL CO. July 27, 1966 [July 28, 1965], No.33824/66. Heading C6F. An indicator composition for viable microorganisms comprises an aqueous solution of nutrient salts, a normally liquid hydrocarbon and at least one triphenyl monotetrazolium chloride, particularly 2, 3, 5-triphenyl [2H] tetrazolium chloride and 1, 4, 5-triphenyl tetrazolium chloride. Formulations of nutrient salts are disclosed. The hydrocarbon may be a jet fuel, a diesel fuel, a kerosine or a home heating oil, but is preferably either a distillate fuel at least 30% of which boils above 400F. and not more than 15% of which boils below 250F., or a mixture of 90% by volume of n-dodecane and 10% of n-hexadecane. Other hydrocarbon products and pure hydrocarbons are also mentioned. The reduction of the tetrazolium chlorides to a red coloured formazan by the living micro-organisms usually takes between 12 and 72 hours; the colour change may, however, be accelerated by enriching the nutrient salts with other specified ingredients to increase the metabolic activity of the micro-organisms or by the addition to the composition, when pure hydrocarbons are employed, of minor amounts of the corresponding alcohol or aldehyde e.g. dodecanal in the case of dodecane. When the indicator composition is employed for field testing for the presence or absence of viable micro-organisms in hydrocarbon fuels and water bottoms associated therewith, the hydrocarbons in the composition may correspond to those present in the fuel, provided they are relatively olefin-free. The examples disclose test procedures on commercial turbine fuels employing: (i) the indicator composition, and (ii) the indicator composition together with a biocide such as a mixture of dioxaborinanes, pink or red colourations being obtained in the former series. It is ascertained from further experiments disclosed that certain other tetrazolium salts are unsuitable. The tests were carried out in serum bottles provided with a split rubber stopper receiving a needle portion of a syringeneedle unit, and a crimpable sealing ring.
Patent GB-464390-A (GB)
Title: Means for marking lines on roads and the like
IPC: E01C23/24
Filed: 1936-12-09
Abstract: 464,390. Line-markers for roads &c. TAYLOR, J. O. Dec. 9, 1936, No. 33827. [Class 132 (ii)] A wheeled machine for marking lines on roads, hard tennis courts, and the like carries a marking brush which is continuously rotated, whilst painting, about a vertical axis, and a tank from which paint may be fed, under control, to the brush. The machine is provided with a pair of road wheels f and a castor wheel g and is propelled by a laterally-offset handle e. Paint from a tank passes through outlet pipes 51, 52 to the centres of annular brushes 44 which are rotated about vertical axes by a friction drive from the road wheels f through rollers on a shaft wand intermediate gearing in a casing 27. The brushes are arranged one in advance of the other with their axes of rotation slightly offset in the transverse direction. Springs 43 press the brushes resiliently against the road. The drive may be disconnected and the brushes raised from the ground by raising a handle 34. The gearing in the casing 27 rotates the brushes in opposite directions so that the outer sides of the brushes move in a forward direction and produce a clean edge.to the line. The flow of paint through the pipes 51, 52, may be started or stopped by valve mechanism controlled by a Bowden mechanism 53, 54. A roller brush o frictionally driven from the road wheels sweeps the road in front of the painting brushes, and may be raised from the ground by a Bowden mechanism r, s.
Patent GB-440846-A (GB)
Title: Improvements relating to flameproof containers for electric controllers
IPC: H01H9/04
Filed: 1934-11-24
Abstract: 440,846. Controllers. E.M.B. CO., Ltd., and SMITH, S., Moor Street, West Bromwich. Nov. 24, 1934, No. 33865. [Class 38 (iii)] A flame-proof container for a controller comprises a pair of flanged parts a forming a cylindrical sheet metal body part adapted to contain the controlling mechanism, and a sheet metal chamber p, arranged on one of the parts a, to contain the connections with the supply cables, one end of the body part being provided with a flameproof removable bearing l for the controller spindle g. Each of the parts a of the container is closed at its ends by semicircular plates b, and flanged around its four edges, the removable bearing l carrying a boss k which fits closely in semicylindrical parts o welded to the plates b around semicircular holes formed therein. The boss k is bored to allow the spindle g to pass, and is of such a length that a flame cannot pass between it and the spindle. The flanges c of the parts a are bolted together and provided .with guard pieces f which prevent operation of the nuts e to remove the outer of the parts a except by an authorized form of spanner. The lower end of the controller spindle g is supported in a bearing h removably secured to a plate b. The removable bearing l is secured to the outer surface of the upper end of the body part. The chamber p is formed by flanged plates r each attached to the outer side of the rear part a of the controller, and is closed by a removable plate t applied to the other edges of the plates.